Radiator arrangement for motor vehicles



June 6, 1939. O o. WINDBERGER RADIATOR ARRANGEMENT FOR MOTOR VEHICLES Filed Oct. 51, 1956 1 I I I l 1 I l l I ll INVENTOR BY fl' ATTORNEY Patented June 6, 1939 UNITED STATES RADIATOR ARRANGEMENT FOR MOTOR VEHICLES Othmar Windberger, Steyr, Austria Application October 31, 1936, Serial No. 108,535 In Austria November 6, 1935 2 Claims.

This invention relates to a cooling appliance, for example a radiator for motor cars. The object of the invention is on the one hand to increase the space to be occupied by the body work, with a given distance between the axles, and on the other hand to simplify as far as possible the assembling of the separate parts. The invention consists in this, that an engine with horizontal or approximately horizontal cylinders or cylinder groups lying opposite one another is combined with a cooling appliance mounted on the cylinders so as to form a unit. Through the arrangement according to the invention it becomes possible to place a cooling device or radiator with a large cooling surface on the engine, on the one hand without increasing the over-all length of the engine and on the other hand Without excessively increasing the over-all height of the unit. An engine with horizontal cylinders of itself occupies only a very small height, the entire width of the engine, reckoned from cylinder head to cylinder head, being available for the arrangement of a cooling appliance. Hence, through the arrangement according to the invention a unit consisting of engine and cooling appliance is provided, which is symmetrical in shape and is particularly suitable for use in motor car construction, owing to its favourable dimensions, and which not only makes it possible considerably to reduce the over-all length of the vehicle, but also, in spite of the reduced over-all length of the vehicle, enables the useful and passenger space to be suitably lengthened and enlarged. Owing to the cooling appliance being combined with the engine to form a unit, it also becomes possible to avoid the usual hose connections or the like and to remove the entire unit very easily.

The arrangement according to the invention may be made such that the cooling appliance is fixed on the oppositely disposed cylinders or cylinder groups of the engine by means of risers for the cooling water standing on the cylinders, the cooling appliance being preferably fixed on each cylinder or on each cylinder group by a riser for the cooling water and a downcomer.

A suitable constructional form is one, in which the connection of the cooling appliance to the cylinders is effected by means of flanges in which riser and downcomer are united. The arrangement may be such that the suction pipes of the cylinders are carried through the flanges containing the risers and downcomers, such that the heat of the cooling water is utilised for preheating the medium which is drawn by suction.

In the accompanying drawing a constructional example of the invention is illustrated, in which the cooling appliance is disposed above an engine having oppositely located cylinders or cylinder groups, lying transversely to the direction of travel, being connected thereto by flanges.

Fig. 1 shows the arrangement in side elevation and Fig. 2 is a diagram of the arrangement viewed in the direction of the crank shaft. Fig. 3 is a horizontal sectional view through one of the connecting flanges.

The cooling appliance I is arranged above the engine 2 and is connected by means of two flanges 4 to the horizontal cylinders 3 which lie transversely to the direction of travel, with or without interposed elastic intermediate layers, such as rubber or the like, the said flanges 4 forming the connecting flanges for the risers 5 and the downcomers 6 for the cooling water. The arrangement is made such that in plan view the cooling appliance does not project substantially beyond the engine, the entire width of the engine from cylinder head to cylinder head being preferably utilised for the cooling surface. The flange 4 may be fastened to the cylinder by means of screws in openings 9.

The flanges 4 also serve for connecting the suction pipes 1 coming from the carburettor 8 to the cylinder 3, the said suction pipes being taken in such a manner through the flanges 4 that the heat of the cooling water can be utilised for preheating the sucked-in mixture.

The flanges 4 may be made as independent parts which are releasably connected to the cooling appliance.

What I claim is:

1. A water-cooled engine for a motor vehicle having opposed, substantially horizontal cylinders, in combination with a radiator mounted upright on the said opposed cylinders, upright risers and downcomers for the cooling water, leading from the cylinders to the radiator, suction pipes leading to the cylinders and through the flanges containing the said risers, downcomers and suction pipes for fixing the radiator to the engine for enabling the heat of the cooling water to be utilised for heating the medium sucked through the suction pipes, the said engine and radiator thus forming a unit.

2. A water-cooled engine for motor vehicles including a casing for horizontally disposed cylinders, an upright radiator positioned directly above said casing and a flange member at each side of the engine for connecting said casing and radiator, each flange having spaced openings for receiving the riser and downcomer of said radiator and having an opening for receiving the suction pipe from the carburetor, said latter opening being disposed close to the other openings for preheating the mixture in the suction pipe, all of said elements forming a unitary structure.

OTI-IMAR WINDBERGER. 

